SpriteStack is a voxel editor suited for 2D artists featuring hand crafted retro renderer with animation support. It exports spritesheets, slices and vox models.
EditorEditor is based on spritestacking technique which means drawing a model slice by slice.
AnimatorKeyframe oriented animation is still experimental but you can already achieve nice results.
Castle model by @LibroRumque
ExporterHandcrafted exporter is what really makes it stand out. It provides interesting retro styled renders with customizable options. It can output spritesheets, slices and *.vox files
Magica VoxelIf you don't feel comfortable with the editor you can import your models from Magica Voxel and use my juicy renderer.
Firestation model by @JereHoh
Available in your browser or as a standalone application.